A spaceship is moving away from an observer at relativistic speed.Its length at rest is 100 m,but the observer measures its length as 50 m.A time interval of 100 s on the spaceship would be measured by the observer to be which of the following?
A)50 s
B)100 s
C)150 s
D)200 s

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The Answer of A spaceship is moving away from an observer at relativistic speed.Its length at rest is 100 m,but the observer measures its length as 50 m.A time interval of 100 s on the spaceship would be measured by the observer to be which of the following?
A)50 s
B)100 s
C)150 s
D)200 s

A Spaceship Is Moving Away from an Observer at Relativistic